Quantum-chromodynamic approach for the large-transverse-momentum production of particles and jets

Phys. Rev. D 18, 3320 – Published 1 November 1978
R. P. Feynman, R. D. Field, and G. C. Fox

Abstract

It is shown that if, in a calculation of high-transverse-momentum (p) meson production in hadron-hadron collisions, one includes not only the scale-breaking effects that might be expected from asymptotically free theories but also the effects due to the transverse momentum of quarks in hadrons and further adds contributions from quark-gluon and gluon-gluon scattering to those of quark-quark scattering then the results are not inconsistent with the data. The approach yields the correct magnitude and an apparent approximate 1p8 behavior in accord with single-particle data for the energy range currently observed. Two-particle correlations are examined. Because of scale-breaking effects and the presence of gluons, the theory does not have the problem of predicting too many away-side hadrons at large p as did an earlier quark-quark scattering "black-box" approach. We conclude that the quantum-chromodynamics approach is in reasonable accord with the data although theoretical uncertainties (especially at low p) make incontrovertible conclusions impossible at present. Crucial tests of the theory require higher p than are now available; estimates for this region are made.

DOI: http://dx.doi.org/10.1103/PhysRevD.18.3320

  • Received 15 May 1978
  • Published in the issue dated 1 November 1978

© 1978 The American Physical Society

Authors & Affiliations

R. P. Feynman, R. D. Field, and G. C. Fox

  • California Institute of Technology, Pasadena, California 91125

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